27-jul-10 06:15:00 Measurements ended --- . Number of lamps (L) = 7 . Filter running time = 252.24 hours . Total airflow this filter = 74.05 cubic meters . Mean BC concentration of all lamps = 15 ng/m3 . Report for lamp 1 (370 nm): . Ending voltages: sen(beam) = .463 sen(zero) = 0.021 . ref(beam) = 2.038 ref(zero) = 0.021 . Optical attenuation of filter deposit = 99 . Total aerosol black carbon on filter = 1254 ng Mean aerosol black carbon concentration = 16 ng/m3 --- The reference beam showed lamp intensity fluctuations of 215 ppm. --- Report for lamp 2 (470 nm): . Ending voltages: sen(beam) = .966 sen(zero) = 0.021 . ref(beam) = 2.201 ref(zero) = 0.021 . Optical attenuation of filter deposit = 74 . Total aerosol black carbon on filter = 1197 ng Mean aerosol black carbon concentration = 16 ng/m3 --- The reference beam showed lamp intensity fluctuations of 178 ppm. --- Report for lamp 3 (520 nm): . Ending voltages: sen(beam) = .754 sen(zero) = 0.021 . ref(beam) = 2.397 ref(zero) = 0.021 . Optical attenuation of filter deposit = 63 . Total aerosol black carbon on filter = 1121 ng Mean aerosol black carbon concentration = 15 ng/m3 --- The reference beam showed lamp intensity fluctuations of 155 ppm. --- Report for lamp 4 (590 nm): . Ending voltages: sen(beam) = 1.026 sen(zero) = 0.021 . ref(beam) = 1.117 ref(zero) = 0.021 . Optical attenuation of filter deposit = 54 . Total aerosol black carbon on filter = 1099 ng Mean aerosol black carbon concentration = 14 ng/m3 --- The reference beam showed lamp intensity fluctuations of 479 ppm. --- Report for lamp 5 (660 nm): . Ending voltages: sen(beam) = 1.654 sen(zero) = 0.021 . ref(beam) = 2.519 ref(zero) = 0.021 . Optical attenuation of filter deposit = 48 . Total aerosol black carbon on filter = 1099 ng Mean aerosol black carbon concentration = 14 ng/m3 --- The reference beam showed lamp intensity fluctuations of 339 ppm. --- Report for lamp 6 (880 nm): . Ending voltages: sen(beam) = 1.581 sen(zero) = 0.021 . ref(beam) = 3.261 ref(zero) = 0.021 . Optical attenuation of filter deposit = 35 . Total aerosol black carbon on filter = 1064 ng Mean aerosol black carbon concentration = 14 ng/m3 --- The reference beam showed lamp intensity fluctuations of 369 ppm. --- Report for lamp 7 (950 nm): . Ending voltages: sen(beam) = 1.299 sen(zero) = 0.021 . ref(beam) = 4.269 ref(zero) = 0.021 . Optical attenuation of filter deposit = 31 . Total aerosol black carbon on filter = 1029 ng Mean aerosol black carbon concentration = 13 ng/m3 --- The reference beam showed lamp intensity fluctuations of 379 ppm. --- Disk space = 1.841818E+07 bytes free: One entry at every 5 minutes. There is space for 3915 hours ( 163 days) more data --- 27-jul-10 06:15:00 Tape feeder mechanism advancing for 1 spot(s). --- ============================================================= --- MAGEE SCIEN. AETHALOMETER --- Aethalometer No. 463 --- 27-jul-10 06:29:54 Measurements started Starting voltages: . sen(zero) = 0.021 ref(zero) = 0.021 . Lamp 1 (370 nm): sen(beam) = 1.219 ref(beam) = 2.100 . Lamp 2 (470 nm): sen(beam) = 2.037 ref(beam) = 2.242 . Lamp 3 (520 nm): sen(beam) = 1.411 ref(beam) = 2.405 . Lamp 4 (590 nm): sen(beam) = 1.738 ref(beam) = 1.112 . Lamp 5 (660 nm): sen(beam) = 2.670 ref(beam) = 2.548 . Lamp 6 (880 nm): sen(beam) = 2.220 ref(beam) = 3.253 . Lamp 7 (950 nm): sen(beam) = 1.739 ref(beam) = 4.310 ---